Improvement in carbureters



1- ZShets SheetI. T. H. HARRINGTON.

Carbureters. N0.167,170, Patented Aug. 31,1875.

IPETEM, VNOTGLITHDGRAFNEH. WASHINGTON, Dv C.

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T. H. HARRINGTON. Car bureters.

11v VENTQR THOMAS H. HARRINGTON, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TOANTHONY F. KEATING, OF SAME PLACE.

IMPROVEMENT IN CARBURETERS.

Specification forming part of Letters Patent No. 167,170, dated August31, 1875.; application filed June 30, 1875.

To all whom it may concern:

Be it known that I, THOMAS H. HARRING- TON, of Pittsburg, in the countyof Allegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Carbureter; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it pertains to make anduse it, reference being had to the accompanying drawings, which formpart of this specificat-ion.

My invention relates to a novel carbureter, and especially to animprovement upon that as described in Letters Patent-of the UnitedStates No. 155,155, issued to me September 22, 1874.; and consists inthe appliances and devices hereinafter more fully set forth and claimed.

In the drawings, Figure 1 represents the mechanical part of my inventionin side elevation. Fig. 2 is a section in a vertical plane on the line00 y of the blower, through which the air or gas passes prior to itsintroduction into the connecting-tube K. Fig. 3 is a View in partsection and part elevation of detail mechanism.

A is an inverted conical chamber, which may be supported on any suitablestandard A. At the center of the bottom of the chamber A is a smallstep, a, in which pivots the vertical shaft B, on which shaft, withinthe said chamber, revolves the water-wheel (l. Said shaft B projectsupward, passing through the tube D, into the second or upper chamber E,in which it rotates the second water-wheel F. The tube D, beforementioned, is of sufficient diameter to admit the simultaneousintroduction of the shaft B, and the water and air, as may be necessaryto pass from the chamber A into the chamber E. This chamber E issupported by means of the standards (1, which connect the same with thechamber.

A. G is a water-supply pipe, which connects with the air-pipe H, andserves to introduce Water into the chamber A. H is a suitable entry-pipefor the introduction of air into the water-service pipe G. Thiswater-service pipe G is constructed with a diminished nozzle in thatpart of it which intervenes between the air-inlet pipe H and chamber A.By means of this entry-pipe H, in connection with the water-supply pipeG, which latter is constructed with the diminished nozzle g, anairsiphon is produced, whereby, as the water in the pipe G passes theopening of the tube H, a vacuum is formed by means of the atmosphericpressure, and the water is consequently propelled forward with greatvigor, and is prevented from any tendency to return upon itself. I is asuitable wastepipe, which serves the purpose of maintaining the pressureconstant, and by its overflow insure a constant and equal pressure ofair within the chamber E. K is a connecting pipe or tube, which conveysthe airfrom the blower to the carbureting-chamber, and is ofsufficiently-strong material and tight joints to insure a safe conduitof the same without loss or leak. At the point where said tube Kconnects with the chamber E a circular series of apertures k are formed,of suitable size to carry sufficient air from said chamber E into thetube K. This tube K may be suitably elbowed and jointed to connect withthe carbureting-chamber M. In its passage thereto it is made to passthrough an annular jacket, L, which surrounds the same, and is designedto form a casing, within which that portion 1 of the pipe K which passestherethrough may be suitably heated by means of the burner 0, to whichreference will be made hereafter. This inclosed portion Zof the pipe Kis of a diameter corresponding to the remaining portion of the pipe K inthe ratio of four to one, more or less, by which means a strong head ofair is constantly maintained within that portion of the pipe'K whichconnects therewith and the carbureting-chamber M, thus insuring asteadyand equal introduction of air through the inclosed body of benzine.

By means of this enlarged portion Z the air is delayed within theheating influence of the jacket L, and is consequently caused to obtaina greater degree of heat than it would if the tube K were of equaldiameter its whole length, in which latter case the air,'making aquicker passage through the jacket L, would not become sufficientlyheated.

There may be suitable stop-cocks K in connection with the pipe K, so asto shut off or let on the air from the carhureting-chamber M. After thepipe K has been introduced into the carhureting-chamber M it passes downthrough the same, and at the bottom it subdivides into quarter-pipes m.These pipes m are provided with apertures m, which are situated at thebase of each, and allow the air to pass therefrom in suitable quantity.

Attached to the carbureting-chamber M is a service-pipe, O, whichconveys the carbureted air to the burners for use. Running out from thisservice-pipe O is a small local tube, 0, which conveys to its jet gassufficient to heat the enlarged portion 1 of the connecting-tube K, fora purpose as hereinafter described.

The carhureting-chamber M may be further provided with a worm-coil, 1),having its entrance-pipe P, and its waste-pipe or port Q, theentrance-pipe P of which may be connected with any adjacentsteam-generator, whereby heated steam is passed through the coil, andfinds a waste-entrance from the exittube Q, thus warming the inclosedbody of benzine within the chamber M.

S is a feed-port, connected with the carbureting-chamber M, and. throughwhich the benzine is passed into the carbureter.

The operation of my invention is as follows: The carbureting-chamber Mis first filled with benzine from the feed-port S. Water is introducedinto the supply-pipe G, and from thence forced into the chamber A bymeans of the air-siphon formed by the combination of the air-entrancepipe H with the diminished nozzle g of the pipe G, causing both air andwater to pass through into the chamber A, where, striking against thebuckets of the water-wheel O at their periphery, a rotation ensues, aconstant pressure being maintained by means of the described air-siphonH g, and the water and air together are forced up through the pipe Dinto the chamber E. As the pressure within this upper chamber Eincreases the surplus water finds vent by means of the exitpipe I, whilethe air, on account of its less specific gravity, rises above the upperpart of the tube I, thus preventing its escape, and is forced up throughthe apertures 70 into the connecting-pipe K, in which it passes throughthe enlarged portion 1 inclosed by the heating-jacket L, in whichpassage it becomes heated and expanded, so that on sub sequentintroduction into the carburetingchamber M by means of the quarter-pipesm it immediately rises up through the liquid benzine, thereby becomingperfectly saturated with the same, taking on itself the volatilehydrocarbon element.

This waste-pipe I will also carry off the surplus air as well as waterwhen the stop-cock K is closed, tlins freeing the chamber E from toogreat pressure.

When the air is thoroughly carbureted or carbonized it finds an exit inthe service-pipe 0, from which it is suitably conducted off for use. Asmall portion of it, however, may be used in connection with the localtube 0,

which serves to heat the air within the jacket L. At the first passageof the air through the carhureting-chamber the burner 0 will burn with abluish jet, which will be changed into the usual white flame as soon asits action upon the inclosed portion 1 of the pipe K becomes manifest.

By the herein-described process I am enabled to carburet common air at aless initiative cost than I am aware that the same has ever before beenaccomplished, at the same time producing a first-class merchantablearticle.

Prior to the discovery of my process it has been necessary to use a moreexpensive petroleum fluid of greater specific gravity in order to obtaina successful result, while by my invention I am enabled to use a fluidof less specific gravity, and of consequent cheaper first cost, with asgood an accomplishment.

It is evident that my mechanism, as before described, may be used foreither of the two purposesthe one before mentioned of carhureting commonair, thereby producing illuminating-gas, and, secondly, enriching orcarbonizing the commercial carbureted hydrogen-since the service-pipe Gmay be suita bly connected with the gasometer, and the coal gas willpass through the same steps as before described, resulting in a richerilluminating-gas.

What I claim, and desire to secure by Letters Patent, is

1. The carbureter consisting of the airchambers A E, containing asuitable air-forcing device, heating-jacket L', and carburetingchamberM, all arranged substantially as and for the purpose described.

2. In a carbureter, the air-entry pipe H, water service-pipe G,connecting-pipe D, in combination-with the water-wheels 0 F andapertures k, substantially as herein set forth.

3. The connecting-pipe K between the blowing and carhureting chambers EM, provided with an enlarged section, Z, having a diameter as of four toone, more or less, with the remaining pipe K, and inclosed in an annularheating-jacket, L, substantially as herein set forth.

4. In a carbureter, the tube K, provided with the apertures 70connecting the air-chamher E, enlarged section I, and stop-cook K, allsubstantially as and for the purpose described.

In testimony that I claim the foregoingI have hereunto set my hand this29th day of June, 1875.

THOMAS H. HARRINGTON.

Witnesses:

R0131. M. BARR, E. J. NOTTINGHAM.

